Delaware County, IA

254 public highway bridges

Delaware County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Delaware County, Iowa contains 254 public highway bridges. Roughly 38.6% are rated “Good,” 51.6% “Fair,” and 6.7% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

254
Total Bridges
38.6%
Good
51.6%
Fair
6.7%
Poor Condition

Condition Distribution

Good
38.6% (98)
Fair
51.6% (131)
Poor
6.7% (17)

All Bridges (254)

IA 38

Good

Over: PLUM CREEK

1.9 mi. N of SR D47, Delaware, IA

Built 1992 Load: 27.8 t ADT: 1,030

LOCAL 125 AVE

Good

Over: SMALL STREAM

087060904, Delaware, IA

Built 1990 Load: 28.8 t ADT: 29

FM 310TH ST

Good

Over: BUFFALO CREEK

087061901, Delaware, IA

Built 1985 Load: 29.2 t ADT: 49

LOCAL 221 ST

Good

Over: SPRING BRANCH

088050203, Delaware, IA

Built 1982 Load: 29.9 t ADT: 137

260TH AVE

Good

Over: PLUM CREEK

089041402, Delaware, IA

Built 1981 Load: 29.9 t ADT: 20

LOCAL 145 ST

Good

Over: SMALL STREAM

090032603, Delaware, IA

Built 1990 Load: 30.5 t ADT: 88

215TH AVE

Good

Over: SMALL STREAM

087052404, Delaware, IA

Built 2004 Load: 31.7 t ADT: 20

LOC 225 ST

Good

Over: SMALL STREAM

088040306, Delaware, IA

Built 1984 Load: 32.4 t ADT: 39

240TH ST

Good

Over: MAQUOKETA RIVER

00000, Delaware, IA

Built 2011 Load: 32.4 t ADT: 1,080

FM 140TH AVE

Good

Over: SAND CREEK

1.1 Mi. North of CR D34, Delaware, IA

Built 2011 Load: 32.4 t ADT: 49

310TH AVE

Good

Over: STREAM

89 03 10 0065, Delaware, IA

Built 2013 Load: 32.4 t ADT: 49

265TH AVE

Good

Over: PLUM CREEK

1 mile North of 195th St., Delaware, IA

Built 2012 Load: 32.4 t ADT: 15

218TH ST

Good

Over: PLUM CREEK

218th St. SE of Earlville, Delaware, IA

Built 2012 Load: 32.4 t ADT: 118

190TH AVE

Good

Over: HONEY CREEK

89 05 10 04, Delaware, IA

Built 2012 Load: 32.4 t ADT: 39

200TH ST

Good

Over: SMALL STREAM

89 04 30 01, Delaware, IA

Built 2013 Load: 32.4 t ADT: 11

FM GOOSE HILL

Good

Over: SMALL STREAM

087032505, Delaware, IA

Built 2007 Load: 32.7 t ADT: 216

FM 245TH AVE

Good

Over: SMALL STREAM

087043308, Delaware, IA

Built 2008 Load: 32.7 t ADT: 390

FM 110TH AVE

Good

Over: ROBINSON CREEK

087060502, Delaware, IA

Built 2008 Load: 32.7 t ADT: 334

LOC 235TH ST

Good

Over: STREAM

088031103, Delaware, IA

Built 2006 Load: 32.7 t ADT: 20

262ND AVE

Good

Over: SMALL STREAM

088042304, Delaware, IA

Built 2005 Load: 32.7 t ADT: 236

150TH AVE

Good

Over: UNAMED CREEK

000000000, Delaware, IA

Built 2009 Load: 32.7 t ADT: 20

FM 110TH AVE

Good

Over: SMALL STREAM

088062902, Delaware, IA

Built 2006 Load: 32.7 t ADT: 334

180TH ST

Good

Over: HONEY CREEK

089051601, Delaware, IA

Built 2005 Load: 32.7 t ADT: 70

FM 162 AVE

Good

Over: STREAM

089051906, Delaware, IA

Built 2004 Load: 32.7 t ADT: 363

FM 195TH ST

Good

Over: STREAM

089051903, Delaware, IA

Built 2005 Load: 32.7 t ADT: 835

FM 190TH ST

Good

Over: REIGER CREEK

8906249000, Delaware, IA

Built 2009 Load: 32.7 t ADT: 363

X47 300TH AVE

Good

Over: BRANCH OF BEAR CREEK

90 03 33 0019, Delaware, IA

Built 2009 Load: 32.7 t ADT: 470

LOC 310TH AVE

Good

Over: BEAR CREEK

090033402, Delaware, IA

Built 2007 Load: 32.7 t ADT: 207

FM 150 ST

Good

Over: SMALL CREEK

090053101, Delaware, IA

Built 1986 Load: 32.7 t ADT: 589

220TH AVENUE

Good

Over: SMALL STREAM

087040602, Delaware, IA

Built 2003 Load: 32.7 t ADT: 49

240TH ST

Good

Over: STREAM

088061401, Delaware, IA

Built 2021 Load: 32.7 t ADT: 90

300TH AVE

Good

Over: STREAM

088031601, Delaware, IA

Built 2021 Load: 32.7 t ADT: 40

W MARION ST

Good

Over: UNNAMED STREAM

089053105, Delaware, IA

Built 2011 Load: 32.7 t ADT: 2,887

200TH AVE

Good

Over: HONEY CREEK

089050204, Delaware, IA

Built 1983 Load: 33.0 t ADT: 29

LOCAL 265 ST

Good

Over: PLUM CREEK

088032903, Delaware, IA

Built 1979 Load: 33.6 t ADT: 44

WB US 20

Good

Over: OVER ABANDON RR

0.4 mi. W of Jct. IA 38, Delaware, IA

Built 1973 Load: 33.8 t ADT: 4,250

FM 272ND ST

Good

Over: N FORK MAQUOKETA RIVER

088033605, Delaware, IA

Built 1999 Load: 34.0 t ADT: 462

FM 220 AVE

Good

Over: MAQUOKETA RIVER

088043004, Delaware, IA

Built 2008 Load: 34.0 t ADT: 894

267TH ST

Good

Over: TURTLE CREEK

On 267th 1.25 W of X21, Delaware, IA

Built 2014 Load: 34.3 t ADT: 226

FM 150 ST

Good

Over: SMALL STREAM

090063601, Delaware, IA

Built 1986 Load: 34.3 t ADT: 589

WB US 20

Good

Over: OVER CC RR

0.9 MI. E OF JCT. 13, Delaware, IA

Built 1971 Load: 34.3 t ADT: 3,850

LOCAL 180 AVE

Good

Over: HONEY CREEK

089051602, Delaware, IA

Built 1984 Load: 34.5 t ADT: 1,030

LOC SHERWOOD RD

Good

Over: PLUM CREEK

088032004, Delaware, IA

Built 1993 Load: 35.6 t ADT: 49

LOC QUARTER RD

Good

Over: MAQUOKETA RIVER

088043404, Delaware, IA

Built 1996 Load: 35.6 t ADT: 49

LOC 400TH ST

Good

Over: MAQUOKETA RIVER

090060501, Delaware, IA

Built 1986 Load: 36.0 t ADT: 157

FM 220 AVE

Good

Over: LIME CREEK

087041908, Delaware, IA

Built 1989 Load: 36.3 t ADT: 88

LOCAL 280 AVE

Good

Over: SMALL STREAM

088031802, Delaware, IA

Built 1991 Load: 36.3 t ADT: 33

LOCAL FLOYD RD

Good

Over: BEAR CREEK

089032608, Delaware, IA

Built 1987 Load: 36.3 t ADT: 501

FM 110 AVE

Good

Over: SPRING BRANCH

089062002, Delaware, IA

Built 1992 Load: 36.3 t ADT: 206

RAINBOW RD

Good

Over: O'DELL BRANCH

090041006, Delaware, IA

Built 1990 Load: 36.3 t ADT: 59

Read our methodology - how this data is sourced, computed, and verified.

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.